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cpumask: use cpumask_var_t in uv_flush_tlb_others.

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Impact: remove cpumask_t, reduce per-cpu size for CONFIG_CPUMASK_OFFSTACK=y

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2009-03-13 14:49:57 +10:30
parent 5c6cb5e2b1
commit 76ba0ecda0
1 changed files with 7 additions and 2 deletions
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9
arch/x86/kernel/tlb_uv.c
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@ -275,6 +275,8 @@ const struct cpumask *uv_flush_send_and_wait(int cpu, int this_blade,
return NULL; return NULL;
} }
static DEFINE_PER_CPU(cpumask_var_t, uv_flush_tlb_mask);
/** /**
* uv_flush_tlb_others - globally purge translation cache of a virtual * uv_flush_tlb_others - globally purge translation cache of a virtual
* address or all TLB's * address or all TLB's
@ -304,8 +306,7 @@ const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,
struct mm_struct *mm, struct mm_struct *mm,
unsigned long va, unsigned int cpu) unsigned long va, unsigned int cpu)
{ {
static DEFINE_PER_CPU(cpumask_t, flush_tlb_mask); struct cpumask *flush_mask = __get_cpu_var(uv_flush_tlb_mask);
struct cpumask *flush_mask = &__get_cpu_var(flush_tlb_mask);
int i; int i;
int bit; int bit;
int blade; int blade;
@ -755,6 +756,10 @@ static int __init uv_bau_init(void)
if (!is_uv_system()) if (!is_uv_system())
return 0; return 0;
for_each_possible_cpu(cur_cpu)
alloc_cpumask_var_node(&per_cpu(uv_flush_tlb_mask, cur_cpu),
GFP_KERNEL, cpu_to_node(cur_cpu));
uv_bau_retry_limit = 1; uv_bau_retry_limit = 1;
uv_nshift = uv_hub_info->n_val; uv_nshift = uv_hub_info->n_val;
uv_mmask = (1UL << uv_hub_info->n_val) - 1; uv_mmask = (1UL << uv_hub_info->n_val) - 1;